Apparatus for filament treatment



Feb. 7, 1933'. T. H. BYRON ETAL 1,896,609

APPARATUS FOR FILAMENT TREATMENT Filed March 14, 1932 11 j .47 E q- 9 65 i' i 7 5 E: ii ii 1 A 1 :1 I i i i; 9 :1 2 2 j :a 2 5 if 777017706 h.Eyre/7, F0401? (arfe T shrinkage of the Patented Feb. 7, 1933 1,896,609

UNITED STATES PATENT; OFFICE- THOMAS H. BYRON/OF ELIZABETHTON, AND RALPHH. CARTER, OF JOHNSON CITY, TENNESSEE, ASSIGNORS TO AMERICAN GLANZSTOFFCORPORATION, OF NEW YORK, N. Y., A CORPORATION OF DELAWARE APPARATUS FORFILAMENT TREATMENT Application filed March 14, 1982. Serial No. 598,866.

The present invention concerns a new method whereby filaments uponperforated spools may be dried from one side only.

In the manufacture of artificial filaments, for example, by the viscoseprocess, the spool process is sometimes used. According to this methodthe filaments are extruded into an ordinary acidifying setting bath,passed from there in the wet state directly upon perforated spools,Wet-treated in the usual manner. This wettreatment comprises theordinary desulfurization, bleaching, washing, deacidifying, etc. It hasbeen found that when artificial filaments are used and wet-treated uponthese perforated spools, and then dried, an uneven drying filamentstakes place. This is caused by the fact that the 'inner layer of thefilaments resting directly against a rigid spool bodily contactsthereagainst, forming a very tight tape. outer layer of filamentssimilarly contract against the inner layer, and the result is unevennessof shrinkage. With filaments thus unevenly shrunk the physicalcharacteristics of the same are altered in succeeding lengths. That is,the denier of the filament appears'to change and the surface of theindividual threads'appears to possess varying degrees of hardness,according to the tension to which various lengths have been subjected.All of this results in the production of a finished production which hasuneven dyeing qualities. In an efiort to obviate the unevenness of thedyeing it has been suggested that the filaments be dried from one sideonly, re-wet and then re-dried from the same side. Between the firstdrying and the second drying, the filaments may be rewound and twistedif desired uponanother spool so that those filaments which wereoriginally on the inner side of the cake Will later be upon the outerside. These steps have produced a filament which possesses a very evendyeing effect inasmuch as very even shrinkage results. In order thatthese filaments might be treated more expeditiously and advan tageouslyin the plants, the present apparatus as been devised.

and, while upon these spools The One object of the present invention isto provide a means whereby a plurality of spools of filaments may besimultaneously dried from one side only.

Another object of the present invention is to provide a means of thetype set forth which is so constructed that the filaments are, at alltimes, held out of contact with the faces of a container which mighttend to damage them.

Other objects will become apparent from a perusal of the followingspecification and a study of the accompanying drawing, in which:

Figure 1 discloses across sectional view of a series of spools insuperimposed position within our new type container,

Figure 2 is a detail view in cross section of one of the sub-containersfor holding the individual spool, and

Figure 3 is a top plan view of the container disclosed in Figure 2.

The filaments (1) arewound upon perforated spools (2) and these spoolsare placed within a holder (3). This holder (3) comprises an outer bodyportion (4) provided at its bottom with inturned edge portions (5). Apair of gaskets (6) and (7) are arran ed above and below the inturnedportions The inturned portions and the gaskets (6) and (7 are arrangedso that a circumferential space 8) is formed. From between these twogaskets a holder (9) for the filaments comprising a three-arm upstandingcylindrical framework, is provided. The spools slip about this innercontainer, as shown in Figure 2, and the filaments (1) are thus heldaway from contact of the side walls (4) of the container. The lower edge(2') of the spool contacts with the upper gasket (6) of the container,thus forming an air-tight connection. The upper end (2) of the spool isadapted to bepressed against the lower gasket (7) of the next containerin the superimposed series. The filaments are wound upon the perforatedspool so that they cover all of the perforations of the same, and bysealin the upper and lower edges of the spools witfi the circumferentialgaskets (6) and (7), it

is seen that an air-tight seal is provided and the filaments upon thespools may thereupon be dried from one side only, inside. A shell (10)in the form of a cylinder with an open end (11) surrounded by a gasket(12) is provided in order that a series of spools may be treated at onetime. The spools are placed within the open end container so that theopen end of the individual spool containers faces the end (11) of thecontainer (10). When a suflicient number of spools in their containershave been placed within the cylinder (10) the cylinders are placed in adrying position as shown at (13) and hot air or other drying media isintroduced to the opening (14). (13) are positioning lugs acting tolocate the cylinder over the opening (14), which should be as wide aspossible in order to freely admit the passage of the air. This airpassing up through the center 'of the spools has access only to theinner surface of the same and therefore dries the filaments 4 upon thespools from the inside only, the outrequired by the patent statutes,

side filaments remaining in a wet state until the latter portion of thedrying operation.

WVhen the drying has been completed, the cylinder (10) still containingthe spools may be lifted bodily and transported to the position of thenext operation, where the spools may be removed from the container.

As will be seen from a study of the steps outlined above, our newprocess provides a means whereby a series of spools may be now treatedin an advantageous manner in about the same length of time originallyrequired if one spool were to be wrapped so that it would be dried fromone side only.

Having now set forth our invention as what we desire to claim 1s:

1. In a device for simultaneously drying several units of spooledfilaments from one side only, in combination an open-ended tube, aseries of individual containers sized to fit within the tube, the saidcontainers being placed in superimposed condition within the saidopen-ended tube, the tube then being placed around positioning lugs on aplate.

2. In a device for simultaneously drying several units of spooledfilaments from one side only, in combination an open-ended tube, agasket arranged within and adjacent the open end, a series of individualcontainers sized to fit within the tube, the said containers beingplaced in superimposed condition within the said openended tube, thetube then being placed around positioning lugs on a plate.

3. In a device for simultaneously drying several units of spooledfilaments from one side only, in combination, an open-ended tube, agasket arranged within and adjacent the open end, a series of individualcontainers sized to fit within the tube, a spool holding means in eachcontainer, the said containers being placed in superimposed conditionwith-.

in the said open-ended tube the tube thenbeing placed around positioninglugs on a plate.

4. In a device for simultaneously drying several units of spooledfilaments from one side only, in combination, an open-ended tube, agasket arranged within and adjacent the open end, a series of individualcontainers sized to fit within the tube, said containers comprisingtubes open at both ends, one of said ends being bent inwardly a shortdisstance to form a shoulder, the said containers being placed insuperimposed condition within the said open-ended tube, the tube thenbeing placed around positioning lugs on a plate.

5. In a device for simultaneously drying several units of spooledfilaments from one side only, in combination, an open-ended tube, agasket arranged within and adjacent the open end, a series of individualcontainers sized to fit within the tube, said containers comprisingtubes open at both ends, one of said ends being bent inwardly a shortdistance'to form a shoulder, gaskets on the face of the shoulder, thesaid containers being placed in superimposed condition within the saidopen-ended tube, the tube then being placed around positioning lugs on aplate.

6. In a device for simultaneously drying several units of spooledfilaments from one side only, in combination, an open-ended tube, agasket arranged within and adjacent the open end, a series of individualcontainers sized to fit within the tube, said containers comprisingtubes open at both ends, a shoulder formed on one of said ends, gasketson the inner and outer faces of the shoulder, whereby the edges of aspool within one of the said containers will be adapted to contact withthe outermost of the said gaskets.

7. In a device for simultaneously drying several units of spooledfilaments from one side only, in combination, an open-ended tube, agasket arranged within and adjacent the open end, a series of individualcontainers sized to fit within the tube, said containers comprisingtubes open at both ends, one of said ends being bent inwardly a shortdistance to form a shoulder, gaskets on the inner and outer faces of theshoulder, the inner end of the spool held in each container beingadapted to contact with the innermost of the said gaskets.

8. In a device for simultaneously drying several units of spooledfilaments from one side only, in combination, an open-ended tube, agasket arranged within and adjacent the open end, a series of individualcontainers sized to fit within the tube, said containers comprisingtubes open at both ends, a shoulder formed on one of said ends, gasketson the inner and outer faces of the shoulder, the inner end of the spoolheld in each container being adapted to contact with the innermost ofthe said gaskets, the said containers being placed in superimposedcondition within the said open-ended tube.

9. In a device for simultaneously drying several units of spooledfilaments from one side only, in combination, an open-ended tube, agasket arranged within and adjacent the open end, a series of individualcontainers sized to fit within thetube, said containers comprising tubesopen at both ends, one of said ends being bent inwardly a short distanceto form a shoulder, gaskets on the inner and outer faces of theshoulder, the inner end of the spool held in each container beingadapted to contact with the innermost of the said gaskets, the tube thenbeing placed 7 around positioning lugs on a plate.

10. In a device for simultaneousl drying several units of spooledfilaments rom one side only, in combination, an open-ended tube, agasket arranged within and adjacent the open end, a series of individualcontainers sized to. fit within the tube, said containers comprisingtubes open at both ends, a shoulder formed on one of said ends, gasketson the inner and outer faces of the shoulder, the inner end of the spoolheld ineach container being adapted to contact with the innermost of thesaid gaskets, the tube then being placed around positioning lugs on aplate, said plate being perforated for the passage of the drying medium.

11. In a device for simultaneously drying.

several units of spooled filaments from one side only, in combination,an open-ended tube, a gasket arranged within and adjacent the open end,a series of individual containers sized to fit within the tube, a spoolholding means in each container, the said containers being placed insuperimposed condition within the said open-endedtube, the tube thenbeing placed around positioning lugs on a plate, said plate beingperforated sage of the drying medium.

12. In a device for simultaneouslfy several units of spooled filamentsrom one side only, incombination, an open-ended tube,

a gasket arranged within and adjacent the open end, a series ofindividual containers sized to fit withinthe tube, a spool holding meansin each container, the tube then being placed around positioning saidplate being perforated of'the drying medium.

In testimony whereof we afiix our signatures.

THOMAS H. BYRON. v RALPH H. CARTER.

for the pasdrying I lugs on a platefor the passage

